Perhaps the most important day of the year, National Ice Cream Day is this Sunday, July 19th.

On July 9th, 1984, President Ronald Reagan deemed July as National Ice Cream Month and the third Sunday (at that time it was July 15th) as National Ice Cream Day; in his proclamation, he stated ice cream was “a nutritious and wholesome food, enjoyed by over ninety percent of people in the United States.”

While being nutritious and wholesome is up for debate, ice cream had other perks — he remarked that “the ice cream industry generates approximately $3.5 billion in annual sales and provides jobs for thousands of citizens. . .contributing substantially to the economic well-being of the Nation’s dairy industry.”

Hey Reagan, you don’t have to convince us.

In honor of this year’s National Ice Cream Day and in no particular order, we decided to look into the unique and oddball flavors at some of the popular San Francisco shops. Which flavors would you try? Which ones would you not touch with a 10 foot pole?

At Humphry Slocombe, you know things are innovative when some of the more normal flavors are Bacon, Ancho Chile, Mushrooms, and Cheese. Here are some of the even weirder ones:

7. Crème fraîche

A temporary flavor on the menu, crème fraîche is a slightly less sour cream (as compared to American-style sour cream) that is popular in French cuisine — it’s used in both savory and sweet foods alike.

[…] flavored ice cream. Apparently the fattened duck liver concoction was quite the hit when served in ice cream sandwiches but is not currently on the menu. Perhaps. They once offered “foie gras” flavored ice […]